Engineers are working to fix a problem at a level crossing in Saxmundham.
A Network Rail spokesman confirmed the crossing in Mill Road had developed a fault.
The spokesman said initial reports suggested at least one of the four barriers which close the crossing to road traffic was failing to rise.
Engineers are currently on site working to fix the problem. All barriers have been closed as a precaution while this takes place.
It is not thought the fault is causing a delay to train services.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here